Zyxel-communications 70 Series Bedienungsanleitung PDF herunterladen (Seite 270)

100

101

ZyWALL 5/35/70 Series User’s Guide

Chapter 15 Anti-Spam 270

15.1.7 MIME Headers

MIME (Multipurpose Internet Mail Extensions) allows varied media types to be used in e-

mail. MIME headers describe an e-mail’s content encoding and type. For example, it may

show which program generated the e-mail and what type of text is used in the e-mail body.

Here are some examples of MIME headers:

• X-Priority: 3 (Normal)

• X-MSMail-Priority: Normal

• Content-Type: text/plain; charset="iso-8859-1"

• Content-Transfer-Encoding: base64

In an MIME header, the part that comes before the colon (:) is the header. The part that comes

after the colon is the value. Spam often has blank header values or comments in them that are

part of an attempt to bypass spam filters.

15.2 Anti-Spam General Screen

Click SECURITY, ANTI-SPAM to open the Anti-Spam General screen. Use this screen to

turn the anti-spam feature on or off and set how the ZyWALL treats spam.

Figure 125 Anti-Spam: General

1 2 ... 265 266 267 268 269 270 271 272 273 274 275 ... 806 807

Kommentare zu diesen Handbüchern

Keine Kommentare

Zyxel-communications 70 Series Bedienungsanleitung Seite 270

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Hardware Zyxel-communications 70 Series